Call for a social media corpora

Hi, all. This is Kayee, I am in my final year of bachelor's studies in Hong Kong. I am doing my final year project. My research is interested in new usages, new spellings and new words in social media and I' d like to know if there are any social media corpora which I could access.

In my research, I focus on analyzing the phenomenon in 2015, so I need to get access a social media corpora collected during 2013-2015 to further my research and finding. Can anyone help me with this?